Re: [PATCH v2] dt-bindings: display: mediatek: split: add clocks count constraint for MT8195

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Hi Krzysztof,

On Fri, 2024-09-27 at 11:37 +0200, Krzysztof Kozlowski wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  On Fri, Sep 27, 2024 at 01:51:40PM +0800, Moudy Ho wrote:
> > From: Moudy Ho <moudy.ho@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > 
> > The display node in mt8195.dtsi was triggering a CHECK_DTBS error
> due
> > to an excessively long 'clocks' property:
> >   display@14f06000: clocks: [[31, 14], [31, 43], [31, 44]] is too
> long
> > 
> > To resolve this issue, apply the limit by setting 'maxItems: 3' in
> MT8195
> > additional condition.
> > 
> > Fixes: 4ed545e7d100 ("dt-bindings: display: mediatek: disp: split
> each block to individual yaml")
> > Signed-off-by: Macpaul Lin <macpaul.lin@xxxxxxxxxxxx>
> > Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx>
> 
> Your SoB does not match.
> 
> Please run scripts/checkpatch.pl and fix reported warnings. Then
> please
> run  and (probably) fix more warnings.
> Some warnings can be ignored, especially from --strict run, but the
> code
> here looks like it needs a fix. Feel free to get in touch if the
> warning
> is not clear.
> 

I apololgize for the mismatch and warning. I will make the corrections
in the next version.

> > --
> > The purpose of this patch is to separate the corrections for
> > MediaTek SPLIT CHECK_DTBS error from the original mailing list
> > mentioned below:
> > 
> https://lore.kernel.org/all/20240924103156.13119-2-macpaul.lin@xxxxxxxxxxxx/
> > 
> > Changes since v1:
> >   - Adding functional descriptions and quantity restrictions.
> > ---
> >  .../bindings/display/mediatek/mediatek,split.yaml           | 6
> ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git
> a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.y
> aml
> b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.y
> aml
> > index e4affc854f3d..bce1b8b866ce 100644
> > ---
> a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.y
> aml
> > +++
> b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.y
> aml
> > @@ -57,6 +57,9 @@ properties:
> >    clocks:
> >      items:
> >        - description: SPLIT Clock
> > +      - description: HDMI RX Clock
> > +      - description: HDMI Metadata Clock
> > +    minItems: 1
> >  
> >  required:
> >    - compatible
> > @@ -72,6 +75,9 @@ allOf:
> >              const: mediatek,mt8195-mdp3-split
> >  
> >      then:
> > +      properties:
> > +        clocks:
> 
> missing minItems
> 
> Missing constraints for all the variants.
> 

Does this mean that a 'maxItems:1' condition needs to be added for
mt8173 clock property under the 'allOf' seciton?

> Best regards,
> Krzysztof
> 

Sincerely,
Moudy Ho




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